types of shoulder dislocation
Anterior
Posterior
Inferior
Inferior sublax
Multidirectional instability
Anteriorr sublaxation, posterior sublaxation
MC type shoulder dislocation
anterior
Mechanism of anterior shoulder dislocation
Abduction, extention and ER
bankart lesion
ant, inf labral tear ass with anterior shoulder dislocation
Ass with high recurrence rate espoecially in younger patients
Hill Sachs lesion
Lesion in posterolateral humeral head due to anterior inferior impact with glenoid
Ass conditions with shoulder dislocation
Rotator cuff tear- espically in older patients >40yo
Axillary nerve injury
Greater tuberosity fracture
Most common injured nerve during shoudler dislocation
axillary
Ass with posterior shoulder dislocaiton
seizures or electric shock
dx psoterior shoulder dislocaiton
AP AND AXILLARY VIEW
AP view- lightbulb sign
Axillary - dislocation
cause of inferiro shulder sublaxation
deltoid atony
shoulder dislocaiton management
traction with rotation
dislocations and relaocations
card sets
most common type of joint dislocation
shoulder
necessary investigations for suspected shoulder dislocation
2 x ray views to r/o fracture- AP, axillary, lateral scapula
predisposing factors for recurrent shoulder dislocation
Rotator cuff tear
Damage to the glenohumeral ligament
Bankart lesion and Hill-Sachs lesion
Loose joint capsule
feature of anterior shoulder dislocation
arm held in abduction and slight ER
humaral head palpable below coracoid
Loss of shoulder contour: prominent acromion and flattening of the deltoid muscle
features of posterior shoulder dislocation
Arm held in adduction and internal rotation (limited external rotation)
Prominent coracoid process with anterior soft tissue flattening
Humeral head not palpable [6]
features of inferior shoulder dislocaiton
Arm held in fixed abduction at ∼ 125° (limited adduction)
Humeral head may be palpable in axilla
Elbow typically held in flexion with a pronated forearm
Axillary nerve injury may be present.
Clinical evaluation of shoulder dislocaiton
assess for signs of a fracture
neurovascular exam
When would you consider MRI for shoulder dislocation
Hill-Sachs lesion or Bankart lesion identified on x-ray
Normal x-ray despite history consistent with dislocation event
mng of posterior shoulder dislocation
typically reduced under general anasthesia
mng of inferior shoulder dislocaiton
Consider traction-countertraction OR gentle rotation of the humeral head to convert it to an anterior dislocation, followed by an anterior dislocation reduction technique.
Consult orthopedics if the humeral head is entrapped, e.g., by the glenohumeral ligament or joint capsule.
anterior shoulder dislocation techniques for relaoaciont
scapular manipulation
milch technique
traction-countertraction
post shoudler reducation care
Repeat neurovascular examination and imaging to evaluate reduction success and identify complications (e.g., Hill-Sachs lesion).
Apply an arm sling or shoulder immobilizer.
Provide analgesia, e.g., acetaminophen, NSAIDs, and/or ice packs.
Ensure short-term follow-up (e.g., in 5–8 days) for orthopedics assessment and subsequent rehabilitation.
Counsel patients on the risk of early recurrence and advise avoidance of contact sports until fully healed.